media: amphion: correct the unspecified color space

in the E.2.1 of Rec. ITU-T H.264 (06/2019),
0 of colour primaries is reserved, and 2 is unspecified.
driver can map V4L2_COLORSPACE_LAST to 0,
and map V4L2_COLORSPACE_DEFAULT to 2.

v4l2_xfer_func and v4l2_ycbcr_encoding are similar case.

Fixes: 3cd08451 ("media: amphion: add vpu v4l2 m2m support")
Signed-off-by: Ming Qian <ming.qian@nxp.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>

drivers/media/platform/amphion/vpu_color.c

@@ -17,7 +17,7 @@
 #include "vpu_helpers.h"
 
 static const u8 colorprimaries[] = {
-	0,
+	V4L2_COLORSPACE_LAST,
 	V4L2_COLORSPACE_REC709,         /*Rec. ITU-R BT.709-6*/
 	0,
 	0,
@@ -31,7 +31,7 @@ static const u8 colorprimaries[] = {
 };
 
 static const u8 colortransfers[] = {
-	0,
+	V4L2_XFER_FUNC_LAST,
 	V4L2_XFER_FUNC_709,             /*Rec. ITU-R BT.709-6*/
 	0,
 	0,
@@ -53,7 +53,7 @@ static const u8 colortransfers[] = {
 };
 
 static const u8 colormatrixcoefs[] = {
-	0,
+	V4L2_YCBCR_ENC_LAST,
 	V4L2_YCBCR_ENC_709,              /*Rec. ITU-R BT.709-6*/
 	0,
 	0,